/**
 
* @package: BrickCAD
 * @className: AppFrame.java
 * @package: default
 * @author: Sean , Jack, Lester, Erik Telstad
 * @date_created: November 16, 2009
 * @last_motified: November 16, 2009
 * 
 * 
 * 
 */
import java.util.Stack;

public abstract class Command {
	protected Brick model;
	Stack<BrickMemento> undo = new Stack<BrickMemento>();
	Stack<BrickMemento> redo = new Stack<BrickMemento>();
	
	abstract void execute();
	
	public void undo(){
		
	}
}
